package com.anda.jsu.yangsp.core.util;

import java.security.MessageDigest;

import com.anda.jsu.yangsp.core.sys.logger.AndaLogger;

/**
 * 
 * @author xiaolu
 * @since 2012-12-06
 * 
 */
public class MD5SecurityUtil {

	public static String MD5(String sourceStr) {
		char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
				'a', 'b', 'c', 'd', 'e', 'f' };
		try {
			byte[] btInput = sourceStr.getBytes();
			MessageDigest mdInst = MessageDigest.getInstance("MD5");
			mdInst.update(btInput);
			byte[] md = mdInst.digest();
			int j = md.length;
			char[] str = new char[j * 2];
			int k = 0;
			for (int i = 0; i < j; i++) {
				byte b = md[i];
				str[k++] = hexDigits[b >>> 4 & 0xf];
				str[k++] = hexDigits[b & 0xf];
			}
			return new String(str);
		} catch (Exception e) {
			AndaLogger.recordLogger(e.getMessage());
		}
		return null;
	}

}
